package MyThread_demo.duoxiancheng_anquan_threads;

/**
 * @author ChenYongHao
 * @date 2023/4/28 13:56
 * @desc 同步代码块
 */

class SellTicket implements Runnable {
    private int tickets = 100;
    private Object obj = new Object();

    @Override
    public void run() {
        while (true) {
            synchronized (obj) {
                if (tickets > 0) {
                    try {
                        Thread.sleep(100);
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                    System.out.println(Thread.currentThread().getName() + "正在出售第" + tickets + "张票");
                    tickets--;
                }
            }
        }
    }
}

public class SellTicket_DEMO {
    public static void main(String[] args) {
        SellTicket st = new SellTicket();
        Thread t1 = new Thread(st, "窗口1");
        Thread t2 = new Thread(st, "窗口2");
        Thread t3 = new Thread(st, "窗口3");
        t1.start();
        t2.start();
        t3.start();
    }
}
